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  4. Long -term stability mass air flow sensor PMF4000 that minimizes zero drift (All Device Co., Ltd.)

Long -term stability mass air flow sensor PMF4000 that minimizes zero drift
All Device Co., Ltd.

About This Product

■ Overview

The PMF4000 is equipped with a 3rd generation thermal flow dai of Poshiifa, which makes full use of the latest fine -tuning technology. Using a pair of thermopils, it detects changes in the temperature gradient due to mamo flalls, achieving excellent signals and noise ratio and repeatability. Since the sensual dwarf's heat insulation structure is the "solid state", there is no need for surface cavity or vulnerable film used in competitors, and Cesa is resistant to clogging and pressure impact. The PMF4000 series includes PMF4000V for analog output and PMF4000D for digital I2C output. The maximum corresponding flow rate is from 12 SLM to 300 SLM. The sensor is compensated as a temperature range of 0 to 50 ° C, and provides maximum flexibility and ease of use by linearization output.

■ Use

・ Oxygen concentration device ・ Respiratory / artificial respiratory organs ・ Nevrizer ・ CPAP device ・ Providing anesthesia ・ League Deployment ・ Demorial division of lighting ・ Mass flow controller ・ Fuel cell control

■ Characteristics

・ Realize unparalleled performance with a robust and cost -effective package ・ "Solid State" Air Singing Core (no surface cavity or vulnerable film) that is resistant to clogging and pressure impact) ・ High accuracy (read rate 4% Typ.) ・ High -speed response (5ms Typ.) ・ Linear output and temperature compensation ・ Long -term stability that minimizes zero drift ・ Wire harness with receptacle (analog naive only)

■ Output voltage

・ For PMF4000V Flowrate calculation = [(output voltage -1 v) / 4 v] x fluorate on full scale Example) PMF4101V's full scale flow rate is 100 SLM. If the output voltage is 3 V, the flow rate is: [(3 V -1 v) /4V x 100 SLM] = 50 SLM ・ For PMF4000D Flowrate calculation = [(count -256) / 15868] X full scale fluorate Example) The full scale rate of PMF4101D is 100 SLM. When the digital output shows 10,000, the flow rate is: [(10,000-256) /15,868 x 100 SLM] = 61.41 SLM

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    Long -term stability mass air flow sensor PMF4000 that minimizes zero drift

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All Device Co., Ltd.

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